Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
DMD eigenvalues and energy spectrum of the exhaled aerosol images: (a) discrete eigenvalues λ relative to the unit circle (blue dashed line) and (b) the transformed eigenvalues calculated as ω = log(λ)/(2π). The phase velocity ωi is normalized by 2π to reveal the frequency information. The DMD spectrum is shown in (d) and the projection of dataset onto the first three DMD modes are shown in (e).
